Engine.



S. 0. GOULD.

ENGINE.

APPLICATION man AUG-24. 1916.

1,221,530 Patented Apr. 3,1917.

3 SHEETS-SHEET I.

THL' NORRIS FEYERS coy. PHDTO-LITNIZ, wnsnmcrunj my C.

Witnesses S. 0. GOULD.

ENGINE.

APPLICATION FILED AUG-24. 191s.

LQQLMQO Patented Apr. 3, 1917.

3 SHEETSSHEET 2.

VII

{Attorneys .3. 0. GOULD.

ENGINE.

APPLICATION FILED AUG.24. 1916.

1,221,530., Patanted Apr. 3, 1917.

3 SHEETS-SHEET 3.

Witnesse} flifl, Invento wzwM by a Attorneys 'SYLVESTER'O. GOULD, OF MARION, INDIANA.

ENGINE.

Specification of Letters Patent.

Patented Apr. 3, 1917.

AppIication filed August at, 1916. 'seriaiivo. 116,687.

To all whom it may concern:

Be it known that I, .Srnvnsrnn O. GOULD, a citizen of the United States, residing at Marion, in the county of Grant and State of Indiana, have invented a new and useful Engine, of which the following is'a specification.

The device forming the subject matter of this application is an internal combustion engine and one object of the invention is to provic e a novel mechanical movement whereby through the instrumentality of two oppositely moving power driven members, motion is transmitted to a rotating element such as a crank shaft.

Another object of the invention is to provide novel means for actuating the valves of the engine.

It is within the province of the disclosure to improve generally a'nd to enhance the utility of devices of that type to which the present invention appertains.

With the above and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts andin the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed can be made within the scope of what 'isclaimed, without departing from the spirit of the invention.

In the accompanying drawings Figure 1 shows in side elevation, an internal combustion engine embodying the present improvements, parts being broken away;

Fig. '2 is a section taken approximately on the line 22 of Fig. 1;

Fig. 3 is an end elevation wherein parts are broken away and removed, so as to show the general construction of the cylinder and piston mechanism Fig. 4 is a sectional detail taken in a vertical plane and showing the ports whereby the explosive charge is communicated to the cylinder, and whereby the exhaust leaves the cylinder.

Fig. 5 is a fragmental elevation showing the operative connection between the crank shaft and adjacent parts; V

Fig. 6 is a fragmental section taken; on the line 6- 6 of Fig. 2, distant parts being omitted. v

In carrying out the present invention there is provided a casing 1 which 'n ay be equipped withsupporting feet 2. The numeral 3 designates a crank case secured to the lowerend ofthe casing 1. Attached to the upper end of the casing 1 is a cap 4. The crankcase 3' is provided as shown in Fig.1 with end bearings 5. The casing 1 may includea central bearing 6. J ournaled in 'the bearings 5 and 6 is a crank shaft 7 which may include disks 8 connected by wrist pins 9. At one end of the crank shaft 7 there is a wheel 10.

Formed integrally with the casing 1 are cylinders 11. Sincethere is'no invention in mere duplication, the description relative to the cylinders will beconfined to a single cylinder. Each cylinder 11 is water jacketed as shown at 12, The nu1i1eral 14 indicates a Valve casing formed integrally with [the cylinder-11 or otherwise supported, the valve casing 14 being water jacketed 'as shown at 15. j

The charge may beconducted to the cylinder '11 in any desired manner and may h conducted away therefrom by any suitable means. In the present instance, the numeral '16 designates an intake manifold into which theex'p'losive mixture passes by way of aport 17. From the intake manifold, the explosive mixture passes into the lower part of the valve casing 14 through a port The num'e'r'a'l 19 designates a port leading nan exhaust manifold 20to the upper part of the valve casing 14. Theshowing as to the exhaust and intake manifolds is largely diagrammatic, it being necessary, merely, that the explosive mixture be admitted to the valvecasing '14 adjacent oneend thereof, and that some suitable means be provided whereby the'exhaust may leave the valve casing adjacent the other end thereof. A lateral port 21.1eads from the intermediate portion of the valve casing 14 to the cylinder 11. Through this port. 21, the explosive mixture is delivered'to the cylinder 11 intermediate its ends, and, by way of the port 21, the exhaust leaves the cylinder. Below the port 21, the valve casin V 14 is provided with a seat 22, and above t eport 21, the valve.fcasing is equipped with a shoulder 23. Mounted in the casing 14 and abutting against the shoulder 28 is a tubu lar valve seat24, held in place by a guide 25 which may be threaded intothe upper end of the cylinder 11. A partition 26 extends across the seat member 24. Slidable in the partition 26 and in the guide 25 is a red 27 provided at its upper end with a head. 58. The rod 27 carries an exhaust 'valve 28 coacting with the lower end of the tubular seat 24. A compression spring 29 surrounds the rod 27 one end of the spring I jaeent the lower end thereof is a partition 30 Mounted on the lower end of a rod 32 is an abutment 31. The rod 32 is slidable in the partition 30 and carries an inlet valve 33 which coiiperates with the seat 22 in the valve casing 14. The lower end of the rod 32 is equipped with a head 36. Surrounding the rod 32 is a compresison spring 34, one end of which engages the abutment 31, the other end of which engages the partition 30. The function of the spring 31 is to maintain the inlet valve 33 seated.

The cylinder 11 of the engine carries a double-walled web 100 extending outwardly to the casing 1 and supporting a lug 35 in which is mounted to reciprocate vertically, a tappet 37 provided at its lower end with a head 38. When the tappet 37 is raised by a means to be described hereinafter, the tappet, coacting with the head 36 on the valve rod 32, constitutes a means for opening the inlet valve 33.

Mounted to reciprocate in the cylinder 11 is an upper piston 39. A lower piston 40 is also mounted to reciprocate in the cylinder. The space between the inner ends of the pistons 39 and 40 constitutes a compression chamber, and the explosive mixture compressed in this chamber may be ignited by" means of a spark plug 41. Pivoted as shown at 42 to the upper piston 39 is a link 43 pivoted at 44 to one end of a walking beam 45 fulcrumed at 46 on a lug 47 carried by the cylinder 11 of the engine. Pivoted at 48 to the other end of the walking beam 45 is'a pitman 49, which is adjustable in length. By means of a connecting rod 52, the wrist pin 9 is operatively united with 'the lower piston 40, the pivotal connection between the rod 52 and the lower piston beingshown at 53. The rod 52 has a rigid angular arm 51 which is pivoted at 50 to the pitman 49.

The numeral 56 indicates a lever fulcrumed at one end at 54 on a bracket 55 carried by the cylinder 11 of the engine. Intermediate its ends, thelever 56 is supplied with a roller 57 which bears on the head 58 of the exhaust valve rod 27. At its other end, the lever 56 is. pivoted at 59 to a rod 100 as shown at 63. The free end of the lever 62 carries a roller 64 adapted to be engaged by a cam 65 on a shaft 66, the shaft 66 being driven from the engine shaft by means of intermeshing pinions 67. The cam 65 is adapted to engage a roller 68 ournaled on one end of a lever 69 fulcrumed intermedlate its ends on the other wall of the web 100, as shown at 70, the other end of the lever 69 carrying a roller 71 coacting with the head 38 of the tappet 37.

In practical operation, an explosive charge is admitted into the valve casing 14 below the inlet valve 33, through the port 18. When the shaft 66 is rotated from the engine shaft 7 by means of the intermeshing pinions 67, the cam 65 coaeting with the roller 68 tilts the lever 69 on its fulcrum 70, the roller 71 on the lever 69 coacting with the head 38 of the tappct 37, the tappet 37 being lifted, and the tappet (reacting with the head 36 of the valve rod 32, the inlet valve 33 being lifted, and an explosive charge being permitted to enter the compression space 72 between the pistons 39 and 40, through the port 21. When this charge is exploded by means of the spark plug 41 or otherwise, the pistons 39 and 40 will be forced apart.

lVhen the pistons 39 and 40 move toward. each other, the exploded charge is permitted to have exit through the port 21 and through the port 19 in the valve casing 14 and in the seat member 24. When the cam shaft 66 is rotated from the engine shaft 7 by means of the pinions 67, the cam 65 on the shaft 66 actuates the lever 62 through the medium of the roller 64, the lever 62 tilting ,on its fulcrum 63. When the lever 62 is tilted, motion will be transmitted to the rod 60. The rod 60 tilts the lever 56 on its fulcrum 54 and the roller 57 on the lever 56, coacting with the head 58 on the valve stem 27, depresses the exhaust valve 48 at an appropriate time, the exhaust gases thus being permitted to enter the member 24, and passing out of the member 24 by way of the port 19 and the exhaust manifold 20.

When the pistons 39 and 40 move apart, the upper piston 39 tilts the walking beam 45 on its fulcrum 46 through the instrumentality of the link 43. When the walking beam 45 is tilted, the rod 49 is actuated, the same imparting rotary motion to the engine shaft 7 through the instrumentality of the arm 51 and the wrist pin 9. When the lower piston 40 moves downwardly, motion is transmitted to the engine shaft 7 through the instrumentality of the connecting rod 52 and the wrist pin 9.

Having thus described the invention, what is claimed is 1. In an engine, a frame including a cylinder; a pair of pistons mounted for right line reciprocation in the cylinder; a walking beam fulcrumed intermediate its ends on the frame; a link forming a connection between one end of the walking beam and one of the pistons; a shaft journaled in the frame and including a crank; a connecting rod pivotally assembled with the crank and with the other of the pistons and having a rigid angular arm which projects in a direction parallel to the plane in which the connecting rod moves; and a pitman pivotally assembled with the other end of the walking beam and with the arm at the outer end of the arm.

2. In an engine, a casing and a cylinder carried by the casing; a web connecting the cylinder with the casing; a pair of pistons working inthe cylinder; a valve casing hav ing inlet and exhaust ports and provided with a combined inlet and exhaust port opening into the cylinder between the pistons; valves operating in the casing and located respectively between the exhaust port and the combined inlet and exhaust port, and between the inlet and the combined inlet and exhaust port; stems carried by the valves; a tappet cooperating with the stem of one valve; means on the web for supporting the tappet slidably; a lever fulorumed on the web and cooperating with the tappet; a second lever fulcrumed on the web; means for operating the stem of the other valve from the second lever; and a shaft supported for rotation, and provided with a cam cooperating with the levers.

3. In an engine, a cylinder; a palr of pistons working therein; a valve casing having inlet and exhaust ports and provided with a combined inlet and exhaust port opening into the cylinder between the pistons, the caslng having a partition and being provided with a shoulder, the shoulder and the partition lying on opposite sides of the combined inlet and exhaust port; a tubular valve seat in the casing and abutting against the shoulder, the valve seat having an exhaust port coinciding with the exhaust port of the casing, and' having a transverse partition; a guide mounted in the casing and cooperating with one end of the valve seat to maintain the other end of the valve seat engaged with the shoulder; valves on opposite sides of the combined inlet and exhaust port and cooperating respectively with the seat and with the casing; stems carried by the valves; one stem being slidable in the partition of the valve seat and in the guide, the other stem being slidable in the partition of the casing; ends, respectively, against the partition of the valve seat and against the partition of the casing, one of the springs being housed beneath the guide; abutments carried by the stems and engaging the outer ends of the springs; and means for actuating the valve stems.

In testimony that I claim the foregoing as my own, I have hereto aflixed my signa ture in the presence of two witnesses.

SYLVESTER o. GOULD.

Witnesses:

SAMUEL L. STRULER, ALLEN G. MESSICK.

Gopies of this patent may be obtained for five cents each, by addressing the Commissioner of .Patents, Washington, D. 0.

springs abutting at their inner. 

